Last Shelter: hero formation simulator

When I got a new hero I tried to test which formation is better, but I couldn't find any tool that would simulate that. Than I came across tool on https://lssbattle.com and it's a really nice tool to simulate battles. You can choose from all heroes, their skills, troops, parts etc.

You do need to register, but the tool is free for 30 simulations, and after that you would need to buy new ones. But I think 30 is enough to test some normal stuff :)

If anyone knows of any better simulator please link it :)